Backlight gesture during sleep mode

Hi, do you know how to enable hand gesture for backlight during sleep mode? During the day it works fine, but at night when I want to check the time I have to press the screen or a button and it's very annoying. Do you have any tips on how to set it up because I don't have the option to turn on gestures in sleep mode in the settings? On my Fenix 6, this work even during the night. Thanks